package com.bjpowernode.controller;

import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

public class OneServlet extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse resp) throws ServletException, IOException {
        ServletContext application = request.getServletContext();
        application.setAttribute("key1",1);
        application.setAttribute("key1",2);
        application.removeAttribute("key1");
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        String userName = req.getParameter("userName");
        System.out.println("OneServlet 从请求体中得到参数： "+ userName);
    }

}
